Berkshire Hathaway Inc.
BG ˙ BUL
SecurityBG:BRYN / Berkshire Hathaway Inc.
InstitutionClean Yield Group
Latest Disclosed Ownership2,348 shares
Latest Disclosed Value $ 1,125,162
Clean Yield Group reports 2.49% decrease in ownership of BRYN / Berkshire Hathaway Inc.

On April 14, 2026 - Clean Yield Group filed a 13F-HR form disclosing ownership of 2,348 shares of Berkshire Hathaway Inc. (BG:BRYN) valued at $1,125,162 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 26, 2026 disclosing 2,408 shares of Berkshire Hathaway Inc.. This represents a change in shares of -2.49% during the quarter.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-04-14 2026-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B Stock 084670702 2,348 -60 -2.49 1,125 -7.02 0.3167
2026-01-26 2025-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B Stock 084670702 2,408 -36 -1.47 1,210 -1.47 0.3360
2025-10-23 2025-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B Stock 084670702 2,444 52 2.17 1,229 5.77 0.3473
2025-07-17 2025-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B Stock 084670702 2,392 -1,045 -30.40 1,162 -36.56 0.3476
2025-04-14 2025-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B Stock 084670702 3,437 -161 -4.47 1,830 12.27 0.5964
2025-01-13 2024-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B Stock 084670702 3,598 -5 -0.14 1,631 -1.69 0.5187
2024-10-07 2024-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B Stock 084670702 3,603 -3 -0.08 1,658 13.10 0.5254
2024-07-10 2024-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B Stock 084670702 3,606 31 0.87 1,467 -2.46 0.5480
2024-05-29 2024-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B Stock 084670702 3,575 -10 -0.28 1,503 17.61 0.5848
2024-01-24 2023-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B Stock 084670702 3,585 -85 -2.32 1,279 0.00 0.5386
2023-10-12 2023-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B Stock 084670702 3,670 -112 -2.96 1,279 -0.85 0.5668
2023-07-26 2023-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B Stock 084670702 3,782 0 0.00 1,290 10.45 0.5312
2023-04-26 2023-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B Stock 084670702 3,782 -837 -18.12 1,168 -18.16 0.4974
2023-01-31 2022-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B Stock 084670702 4,619 2,060 80.50 1,427 108.78 0.6128
2022-10-31 2022-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B Stock 084670702 2,559 0 0.00 683 -2.29 0.3170
2022-07-18 2022-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B Stock 084670702 2,559 -62 -2.37 699 -24.43 0.2889
2022-04-25 2022-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B Stock 084670702 2,621 0 0.00 925 17.98 0.3267
2022-01-24 2021-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B Stock 084670702 2,621 0 0.00 784 9.65 0.2506
2021-10-27 2021-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B Stock 084670702 2,621 14 0.54 715 -1.38 0.2345
2021-07-26 2021-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B Stock 084670702 2,607 0 0.00 725 8.86 0.2464
2021-04-26 2021-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B Stock 084670702 2,607 -80 -2.98 666 6.90 0.2505
2021-01-26 2020-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B Stock 084670702 2,687 -22 -0.81 623 7.97 0.2239
2020-10-16 2020-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B Stock 084670702 2,709 0 0.00 577 19.21 0.2340
2020-07-22 2020-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B Stock 084670702 2,709 0 0.00 484 -2.22 0.2091
2020-04-20 2020-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B Stock 084670702 2,709 50 1.88 495 -17.77 0.2351
2020-01-17 2019-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B Stock 084670702 2,659 200 8.13 602 17.58 0.1887
2019-10-23 2019-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B Stock 084670702 2,459 0 0.00 512 -2.29 0.1689
2019-07-22 2019-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B Stock 084670702 2,459 0 0.00 524 6.07 0.1894
2019-04-24 2019-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B Stock 084670702 2,459 122 5.22 494 3.56 0.2000
2019-01-23 2018-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B Stock 084670702 2,337 -25 -1.06 477 -5.73 0.2076
2018-10-22 2018-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B Stock 084670702 2,362 -37 -1.54 506 12.95 0.2014
2018-07-24 2018-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B Stock 084670702 2,399 -312 -11.51 448 -17.19 0.1856
2018-04-23 2018-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B Stock 084670702 2,711 650 31.54 541 32.27 0.2285
2018-01-16 2017-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B Stock 084670702 2,061 0 0.00 409 8.20 0.1619
2017-10-11 2017-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B Stock 084670702 2,061 0 0.00 378 8.31 0.1542
2017-07-17 2017-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B Stock 084670702 2,061 0 0.00 349 1.45 0.1460
2017-05-03 2017-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B Stock 084670702 2,061 0 0.00 344 2.38 0.1449
2017-01-24 2016-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B Stock 084670702 2,061 37 1.83 336 15.07 0.1515
2016-10-28 2016-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B Stock 084670702 2,024 37 1.86 292 1.39 0.1269
2016-07-27 2016-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B Stock 084670702 1,987 0 0.00 288 0.70 0.1236
2016-04-15 2016-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B Stock 084670702 1,987 0 0.00 286 14.40 0.1271
2016-01-27 2015-12-31 13F BERKSHIRE HATHAWAY INC DEL CL B Stock 084670702 1,987 0 0.00 250 -9.09 0.1233
2015-10-29 2015-09-30 13F BERKSHIRE HATHAWAY INC DEL CL B Stock 084670702 1,987 0 0.00 275 1.85 0.1297
2015-07-31 2015-06-30 13F BERKSHIRE HATHAWAY INC DEL CL B Stock 084670702 1,987 0 0.00 270 -5.92 0.1240
2015-04-24 2015-03-31 13F BERKSHIRE HATHAWAY INC DEL CL B Stock 084670702 1,987 1,987 0.00 287 0.1230
2015-01-29 2014-12-31 13F Berkshire Hathaway Inc Cl B COM 084670702 0 -1,887 -100.00 0 -100.00
2014-10-27 2014-09-30 13F Berkshire Hathaway Inc Cl B COM 084670702 1,887 0 0.00 261 9.21 0.1253
2014-07-21 2014-06-30 13F Berkshire Hathaway Inc Cl B COM 084670702 1,887 1,887 239 0.1181
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.